Question

1 Explain the fundamental condition to be satisfied for true rolling
motion.

Answer 1

Answer:

True rolling occurs only when<the direction of motion of the vehicle is perpendicular to the wheel axis (Fig. 27.22A), i.e. the wheel is subjected to forward force. ... This condition occurs when the wheels are being steered, i.e. the direction of motion is neither parallel nor perpendicular to the axis of rotation.

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Answer 2

Answer:

True rolling occurs only when<the direction of motion of the vehicle is perpendicular to the wheel axis (Fig. 27.22A), i.e. the wheel is subjected to forward force. ... This condition occurs when the wheels are being steered, i.e. the direction of motion is neither parallel nor perpendicular to the axis of rotation.